Bug 174084
| Summary: | multipathd incorrectly handles devnode blacklist on runtime | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | Kari Hautio <kari.hautio> |
| Component: | device-mapper-multipath | Assignee: | Alasdair Kergon <agk> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 4.0 | CC: | agk, bmarzins, christophe.varoqui, dmo, egoggin, jbrassow, junichi.nomura, kanderso, kueda, lmb, poelstra, rkenna, tranlan |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | RHEA-2006-0084 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2006-03-07 18:41:48 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 168429, 171044 | ||
Could you run multipathd with the "-v 10" option? We should see a message like: /dev/md10 blacklisted in the logs. Here's a new run, somewhow it seems to renember /dev/md10 now so I'm creating md11 while it's running. Nov 24 17:56:11 src@CLA-0 multipathd: --------start up-------- Nov 24 17:56:11 src@CLA-0 multipathd: read /etc/multipath.conf Nov 24 17:56:11 src@CLA-0 multipathd: dm-0 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-10 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-11 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-12 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-13 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-14 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-15 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-16 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-17 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-18 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-19 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-1 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-20 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-21 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-22 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-23 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-24 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-25 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-26 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-27 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-28 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-29 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-2 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-30 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-31 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-32 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-33 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-34 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-35 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-36 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-3 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-4 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-5 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-6 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-7 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-8 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: dm-9 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop0 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop1 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop2 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop3 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop4 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop5 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop6 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: loop7 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: md0 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: md10 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: md1 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: md9 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram0 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram10 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram11 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram12 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram13 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram14 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram15 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram1 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram2 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram3 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram4 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram5 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram6 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram7 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram8 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: ram9 blacklisted Nov 24 17:56:11 src@CLA-0 multipathd: path sda not found in pathvec Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sda ===== Nov 24 17:56:11 src@CLA-0 multipathd: bus = 1 Nov 24 17:56:11 src@CLA-0 multipathd: dev_t = 8:0 Nov 24 17:56:11 src@CLA-0 multipathd: size = 286749610 Nov 24 17:56:11 src@CLA-0 multipathd: vendor = IBM Nov 24 17:56:11 src@CLA-0 multipathd: product = IC35L146F2DY10-0 Nov 24 17:56:11 src@CLA-0 multipathd: rev = F56A Nov 24 17:56:11 src@CLA-0 multipathd: h:b:t:l = 0:0:0:0 Nov 24 17:56:11 src@CLA-0 multipathd: tgt_node_name = 0x500507671903f255 Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getuid = /rbin/fc_getloopid.sh %n (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: uid = 62 (callout) Nov 24 17:56:11 src@CLA-0 multipathd: path sdb not found in pathvec Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdb ===== Nov 24 17:56:11 src@CLA-0 multipathd: bus = 1 Nov 24 17:56:11 src@CLA-0 multipathd: dev_t = 8:16 Nov 24 17:56:11 src@CLA-0 multipathd: size = 286749610 Nov 24 17:56:11 src@CLA-0 multipathd: vendor = IBM Nov 24 17:56:11 src@CLA-0 multipathd: product = IC35L146F2DY10-0 Nov 24 17:56:11 src@CLA-0 multipathd: rev = F56A Nov 24 17:56:11 src@CLA-0 multipathd: h:b:t:l = 0:0:1:0 Nov 24 17:56:11 src@CLA-0 multipathd: tgt_node_name = 0x500507671903fd43 Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getuid = /rbin/fc_getloopid.sh %n (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: uid = 63 (callout) Nov 24 17:56:11 src@CLA-0 multipathd: path sdc not found in pathvec Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdc ===== Nov 24 17:56:11 src@CLA-0 multipathd: bus = 1 Nov 24 17:56:11 src@CLA-0 multipathd: dev_t = 8:32 Nov 24 17:56:11 src@CLA-0 multipathd: size = 286749610 Nov 24 17:56:11 src@CLA-0 multipathd: vendor = IBM Nov 24 17:56:11 src@CLA-0 multipathd: product = IC35L146F2DY10-0 Nov 24 17:56:11 src@CLA-0 multipathd: rev = F56A Nov 24 17:56:11 src@CLA-0 multipathd: h:b:t:l = 1:0:0:0 Nov 24 17:56:11 src@CLA-0 multipathd: tgt_node_name = 0x500507671903f255 Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getuid = /rbin/fc_getloopid.sh %n (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: uid = 62 (callout) Nov 24 17:56:11 src@CLA-0 multipathd: path sdd not found in pathvec Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdd ===== Nov 24 17:56:11 src@CLA-0 multipathd: bus = 1 Nov 24 17:56:11 src@CLA-0 multipathd: dev_t = 8:48 Nov 24 17:56:11 src@CLA-0 multipathd: size = 286749610 Nov 24 17:56:11 src@CLA-0 multipathd: vendor = IBM Nov 24 17:56:11 src@CLA-0 multipathd: product = IC35L146F2DY10-0 Nov 24 17:56:11 src@CLA-0 multipathd: rev = F56A Nov 24 17:56:11 src@CLA-0 multipathd: h:b:t:l = 1:0:1:0 Nov 24 17:56:11 src@CLA-0 multipathd: tgt_node_name = 0x500507671903fd43 Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getuid = /rbin/fc_getloopid.sh %n (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: uid = 63 (callout) Nov 24 17:56:11 src@CLA-0 multipathd: pgfailback = -2 (config file default) Nov 24 17:56:11 src@CLA-0 multipathd: HDF_62: event checker started Nov 24 17:56:11 src@CLA-0 multipathd: pgfailback = -2 (config file default) Nov 24 17:56:11 src@CLA-0 multipathd: HDF_63: event checker started Nov 24 17:56:11 src@CLA-0 multipathd: path checkers start up Nov 24 17:56:11 src@CLA-0 multipathd: 8:0: readsector0 checker reports path is up Nov 24 17:56:11 src@CLA-0 multipathd: 8:0: reinstated Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sda ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 62 (cache) Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdc ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 62 (cache) Nov 24 17:56:11 src@CLA-0 multipathd: 8:16: readsector0 checker reports path is up Nov 24 17:56:11 src@CLA-0 multipathd: 8:16: reinstated Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdb ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 63 (cache) Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdd ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 63 (cache) Nov 24 17:56:11 src@CLA-0 multipathd: 8:32: readsector0 checker reports path is up Nov 24 17:56:11 src@CLA-0 multipathd: 8:32: reinstated Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sda ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 62 (cache) Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdc ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 62 (cache) Nov 24 17:56:11 src@CLA-0 multipathd: 8:48: readsector0 checker reports path is up Nov 24 17:56:11 src@CLA-0 multipathd: 8:48: reinstated Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdb ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 63 (cache) Nov 24 17:56:11 src@CLA-0 multipathd: ===== path sdd ===== Nov 24 17:56:11 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: getprio = /rbin/true (internal default) Nov 24 17:56:11 src@CLA-0 multipathd: prio = 0 Nov 24 17:56:11 src@CLA-0 multipathd: uid = 63 (cache) Nov 24 17:56:12 src@CLA-0 multipathd: multipathd startup succeeded Nov 24 17:57:01 src@CLA-0 kernel: md: md11 stopped. Nov 24 17:57:01 src@CLA-0 kernel: md: bind<loop1> Nov 24 17:57:01 src@CLA-0 kernel: md: bind<loop0> Nov 24 17:57:01 src@CLA-0 kernel: raid1: raid set md11 active with 2 out of 2 mirrors Nov 24 17:57:01 src@CLA-0 multipathd: path md11 not found in pathvec Nov 24 17:57:01 src@CLA-0 multipathd: ===== path md11 ===== Nov 24 17:57:01 src@CLA-0 multipathd: bus = 0 Nov 24 17:57:01 src@CLA-0 multipathd: dev_t = 9:11 Nov 24 17:57:01 src@CLA-0 multipathd: size = 19840 Nov 24 17:57:01 src@CLA-0 multipathd: path checker = readsector0 (internal default) Nov 24 17:57:01 src@CLA-0 multipathd: getuid = /rbin/fc_getloopid.sh %n (internal default) Nov 24 17:57:01 src@CLA-0 multipathd: error calling out /rbin/fc_getloopid.sh md11 Nov 24 17:57:01 src@CLA-0 multipathd: uid = (callout) Nov 24 17:57:01 src@CLA-0 multipathd: md11: path checker registered I can recreate this bug with the U2 code. It is already fixed in the U3 code. I will have a U3 device-mapper-multipath package available shortly. The kernel doesn't handle the blacklisting of devices. It simply works with the devices that the userspace tools supply. This problem was in userspace, and the fix did not involve any kernel code. The fix is in the U3 device-mapper-multipath package that is being tested by QA. An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHEA-2006-0084.html |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050922 Fedora/1.0.7-1.1.fc4 Firefox/1.0.7 Description of problem: Multipathd seems to ignore blacklisting if device is created after the multipathd has been started. Version-Release number of selected component (if applicable): device-mapper-multipath-0.4.5-6.0.RHEL4 How reproducible: Always Steps to Reproduce: 1. Ensure that md devices are blacklisted in config ie. blacklist { devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*" } 2. start at least one raid array eg. /dev/md0 3. start multipathd 4. Check that the already started array is ignored eg. fuser /dev/md0 5. start up one more raid eg. /dev/md10 Actual Results: 1) According to syslog multipathd starts to monitor /dev/md10 Nov 24 13:04:12 src@CLA-1 kernel: raid1: raid set md10 active with 2 out of 2 mirrors Nov 24 13:04:12 src@CLA-1 kernel: md: syncing RAID array md10 Nov 24 13:04:12 src@CLA-1 multipathd: error calling out /rbin/fc_getloopid.sh md10 Nov 24 13:04:12 src@CLA-1 multipathd: md10: path checker registered Nov 24 13:04:21 src@CLA-1 kernel: md: md10: sync done. Nov 24 13:06:41 src@CLA-1 kernel: md: md10 still in use. Nov 24 13:07:03 src@CLA-1 kernel: md: md10 stopped. 2) /dev/md10 is opened (and kept open by multipathd) # fuser /dev/md10 /dev/md10: 1583 [root@CLA-1(EMC-R_FSPR4_1.9-1) /root] # ps ax | grep 1583 1583 ? SLl 0:00 /sbin/multipathd 3237 pts/0 S+ 0:00 grep 1583 [root@CLA-1(EMC-R_FSPR4_1.9-1) /root] Expected Results: md10 should have been ignored by multipathd (according to blacklist) Additional info: This behaviour makes it problematic to stop the array since it's kept open by a process (=multipathd), the workaround is to restart multipathd after creating new arrays however this causes problems in recovering the paths in some corner cases.